Mechanism for removing blanks from magazines and transferring the blanks to mandrels



March 19, E94.

J. CUTLER MECHANISM FOR REMOVING- BLAHKS MAGAZINES AND TRANSFERRING- THEBLANKS T0 MANDREES Original Filed July 10, 1943 5 Shaets-$heet 1 J.CUTLER MECHANISM FOR REMOVING BLANKS FROM MAGAZINES AND TRANSFERRING THEBLANKS ,TO MANDRELS Original Filed July 10, 1943 5 Sheets-Sheet 2.

,Jac0$ Cu? Zen J. CUTLER HANISM FOR REMOVING BLANKS FROM MAGAZINES THEBLANKS T0 MANDRELS Original Filed July 10, 1943 5 Sheets-Sheet E ANDTRANSFERRING March 19, 1946. J. CUTLER 3 MECHANISM FOR REMOVING BLANKSFROM MAGAZINES AND TRANSFERRING THE BLANKS TO MANDRELS Original FiledJuly 10, 1943 5 Sheets-Sheet 4 @cozw 871122 wflg -fi. J. CUTLER2,396,988

MECHANISM FOR REMOVING BLANKS FROM MAGAZINES 7 AND TRANSFEHRING THEBLANKS TO MANDRELS 7 Original Fi1ed-Ju1y 10, 1943 5 Sheets-Sheet 5Patented Mar. 19, 1946 MECHANISM FOR, REMOVING BLANKSFROM MAGAZINES ANDTRANSFERRING THE BLANKS T MANDRELS w Jacob Cutler, Mattapan, Mass.Original application July 10. 1943, Serial No. 494,239. Divided and thisapplication November 13, 1944, SeriaI'ND. 563,244

Claims. (01. 271e 4) My present invention relates to mechanisms forremoving blanks from a magazine in which they are stacked and carryingthem to and placing them on a mandrel on which the blanks are formedinto jackets.

More specifically the present invention lies in a blank transferringmechanism that is particularly adapted for use in the cone jacketforming machine which constitutes the subject matter of my originalapplication filed July 10, 1943, Serial No. 494,239, of whichapplication the present one is a division.

Other objects will in part be obvious and in part be pointed outhereinafter.

To the attainment of the aforesaid objects and ends, the invention stillfurther resides in the novel details of construction, combination andarrangement of parts, all of which will be first fully described in thefollowing detailed description and then be specifically ointed out inthe appended claims, reference being had to the'accompanying drawings,in which:

Fig. 1 is a top plan view of a machine in which my invention isembodied, the machine being the; disclosed in my original applicationaforesai Fig. 2 is a side elevation of so much of the machine asparticularly relates to the present application, the remaining parts ofthe machine being omitted. r

' letters of reference indicate like parts in 'all the figures, the samereference numbers and letters'.have beenused as are used on like partsof the machine disclosed in my original application aforesaid. V

In general, the machine of my original application (in'w'hich machinethe present invention is especially useful) embodies a supporting frame,a drive motor, a'vacuum pump, a magazine for the jacket blanks, a, meansto apply adhesive to the-blanks as they are taken from the magazine, aconveying means to take the blanks from the magazine and convey them tothe mandrel on which they are formed, a means to fold the blanksaboutthe-mandrel and cause the adhesiveto function, and a mechanism forstripping the blanks from the mandrel and discharging them from; themachine.

The subject matter of the present application involves only themechanisms that take the blanks from the magazine, carry them to aposition beneath the mandrel and raise the'blanks into contact with themandrel.

The frame of the machine comprises vertical corner angle bars 1, bottomside and end angle bars 2, top angle bars 3, intermediate side anglebars 4, vertical supports 5 and horizontal supports 6, 6 6 6, and 6 Fig.3 is a similar view looking at the side opposite that of Fig. 2.

Fig. 4 is an enlarged detail plan view of the blank-carrying fork memberand the blank-lift ing member. 1

Fig. 5 is an enlarged detail vertical section on about the line 5-5 ofFig. 1, parts being omitted. V Fig. 6 is a cross section on the line 6-6of Fig. 5, showing the position of the blank lifter at its lowestposition.

Fig. 7 is a view similar to Fig. 6 showing the blank lifter on itsupward course and having reached the position shown in Fig. 5.

Fig; 8 is a view similar to Figs. 6 and 7, showing theposition of theparts when the lifter has brought the blank to the mandrel, at whichtime the blank-carrying fork will have been withdrawn from embracing thelifter.

Fig. "9 is an enlarged detailed vertical section of the valve devicewhich controls the vacuum actions. V

Figs. 10 to 13 inclusive are detail views of the various cam elementsthat effect the operation of the various parts of the present invention.

f In the drawings in which like numerals and Mounted on the support 6 isa driving electric motor 1 and a vacuum pump II. The motor I has a.drive pulley 9 and a smaller drive pulley l0 secured to its shaft 8 (seeFig. 3), while the pump shaft 12 carries-a large driven pulley l3.Theqpulleys 9 andl3 are connected by a beltl4, thereby constituting areduction speed drive for the pump." The small pulley I0 is connected bya belt IT to a large pulley l6 on a stub shaft l5.

vThe pulley ids-secured. to the stub shaft 15 as is also a pinion l8which meshes with a master gear 20 on a cam-shaft-lll," v

'The' cam-shaft I9 is journalled in suitable bearings 2| that aremounted on supports 22 which are carried by the side bars 2 of theframe.

secured to the bars 4 is a transverse angle bar 23, there being anothersuch bar 23 mounted below and secured to the supports 22. Secured, atsuitably spaced intervals, to the bars 23 are vertical supports 24 forthe pivots 255 of the several cam levers shown in detail in Figs. 10tol3inclusivel The operating cams V Referring now particularly to Figs.2, 3 andlO to 13 inclusive, it will be seen that the several camscomprisesplitclamps that carry the various cam rollers. Fig. 10 showsthejacket blank carrier advancing cam 31, the blank carrier retractingcam 39 and the respective arms 38 and 40 of the lever M which cooperatewith the cams 31 and v 39, respectively. Fig. 11 shows thevacuumicontrolcam 44- and its" lever 45. Fig. 12 shows tlie cam42and itslever 43 which serve to effect the raising and lowering of the jacketblank carrier when the carrier is beneath the magazine. Fig. 13 showsthecam 29andits lever which eifect the raising and lowering of thedevice which lifts the blanks to and partly about" the mandrel.

The blank transfertmechanism,

Slidably mounted on rigid guide rods BIL-is a carriage 9I (Fig. l) whichcarries a bracket 89.- Oil pads 92 are located on the rods 90 betweenfurcationsof thesliding-carriage 9| andslide 0 with it along the rods tolubricate the bearing surfaces=- 93 is a back-stop for the. carriageand'is "secured to the frame adjustably.

Vertically, slidably mounted in suitable bearingsin-thebracket 89 (Figs..3, 4 and 5) is a 26 rod 95 to the top of which.- is rigidly secured anoflset bracket 98,- to which theblank removing ancl carrying forkedmember (or transfer member) 99 is rigidly fastened, as-at I00. The rod 795; between the upper and lower bearings 94, 30 carries a spring 91-anda spring-tension-adjusting collar-:96.- The shaft or rod 95 is held fromturning on its axis'bymeans of an arm258 whose end'isslidable inavertically slotted stud 2-56'that is-secured to the bracket 89 (Fig.3). 3

Thejack'et blanks transfer member 99 includes converging arms IOI-having along their upper faces-longitudinal grooved portions .102. DuctsI0-4," I05 are formed in the member99 and communicate with ports I03 in.the grooved portions 49 I-'02-- (Fig. '4). The duct I05-is connected toa flexible duct I0! bymeans of a nipple I06. The duct-I01 isconnected-to the suctionregulating valve I25 that communicateswiththesuction pu "II-via nttii'ig m, flexible duct-I24, rigid 'duct123,suction control valve II9, and'flexible duct I22 (Figs.2and 3) PBracketsI08; secured-to'the frame of the machinegcarry a rock shaft 109 and anarm III]; A connecting rod H4 connects arm IIO with {cam} lever 43(Figs. 2 and" 12) Secured to the shaft-I09 is 'a lever or rocker arm IIIhaving a beveled' edge -II2. The lever -III lles'in. the plane in whichthe rod 95 is moved by the carriage 9| so that when the carriage is its5 retracted or back position the rod 95 will have ridden up onto the endof lever Ill (Fig. .3).

'A spring II3 connects the rear end of lever III with the frame of themachine and constantly tends to-urge the lever III to lower :its beveled69 end. a

- The sliding carriage9l also-hasa slotted lu II5'to which is pivotedone" end of. a link IIB, the other end of which is pivoted to the camlever 4 I.- 1 J The suction control value.

The suction control (on and off) valve I I9 has its stem I20 linked to aleveraI I8. One end of the lever I I8 is pivoted to a bracket 1, whilethe other end thereof is joined by a spring I32, constituting ayieldableconnection, to they conf nectingrod-HI -th at ioin sto-cam lever 45. Thevalve II 9 is of a special fkind inorder to effect properly the timelyaction of the suction short time, namely only while head I33 is takingmeans. This valve comprises a casing having a valve seat 259 forcontrolling the main passage. The neck 262 of the valve has an annulargroove 263 from which leads a port 266 to the nipple 261 to which theflexible duct I43 connects.

' The stem 260 of the'valveh'a's the valve plug 26I which cooperateswith the -seate259. The stem also has a bore 264 entering its lower end.Ports 265 efiect communication between the bore 264 and the groove 263when the plug 26I is seated, i. c. When the stem 260 is pressed down bythe lever IIBfthereby cutting 01f the suction to the fork fingers WI andthe mandrel and establishing suction in the pipe I40.

The valve stem-260 is held down only for a a blank off the blanktransfer member 99 (Fig. 7) and elevating it to the mandrel 10. As soonas pipe I40 contacts the mandrel and is depressed to the bottom of thegroove I39, valve II9 returns tonormal position i. e., with passage viaseat 259 open and passage via 264, 263, and 266 closed.

Located for up and down movement beneath the operative part of themandrel I0 is a grooved folding head I33 that is carriedby a verticallyreciprocatable rod I35. ,The rodv I35 is mounted in a bearing boss I34(Fig. :3) depending irom theplate 48 and is pivoted at its lower end toa lever I36 thatis fulcrumed. in

a second boss I44, also depending from the'plate 48. The lever I36 isconnected, by a connecting rod I31, with cam lever 30 (Fig. 13).

Th groove I38 in the head I33 conforms to the shape of the mandrel I0.The head has a bore I39 intersecting the groove I38, through which borea pipe I49 projects. The pipe I40 is held with its upper or free endlocated on a level preferably slightly below the level of; the top ofthe head, by means .of a spring l4ll and a stop collar MI. The lower end.ofthe pipe I40'is connected to a flexible duct I43 (Figs. 2 and.3)which in turn connects to and is controlled bythevalvel I9. a 4 v Theblank magazine 67 is fixedly held .by a bracket 68 which in part alsocarries the slotted guides I5 and the mandrel ;l0,- the latter alsobeing supported on the cross. bar -5 I. The magazine 61 is provided withleaf springs 253'and a finger 268 for holding the packof blanks fromfalling out of the magazine an dfor this purposethe springs 253 havetheir lower ends 251 bent inwardly (Fig.5). v r

Operation Assumethe parts to be in the position shown in Figs. 1, 2 and3. At this timethefblankltransferring mechanism is in its retractedposition, the fork 99 lying directly beneath themag'azine. 61.?

Cam 42 is just about to engage lever-'43 (Fig. 12) to cause lever I II.to. lift'iodj Jand the jacket-transferring member 99in order to gathera jacket. blank fromthe magazine- Continued operation of the machine.causesthemem'ber .99 to be raised up to the magazine .(see dotted.lines, Fig. 5); causes valve II9 toopenbyspring -I'2I, allowing pump I Ito produce a suction'i'n'grooves I02of the transfer fork, thereby .todraw. down the bottom blank-from the magazine. Asysoon as the blank hasadhered to the arms I0 I ofthe I0. Asithe carriage advances,takingwithitthe blank, the head 'I 33 -rern ains at itslowerposition sothat it will be str addled'by the fork when the fork reaches itsfarthest advanced position (Fig.

As soon as the fork 99 reaches the position shown in Fig. 4, the headI33 rises and the jacket is lifted from the fork arms I0 I'.

It should be understood that suction is maintained in the fork fingersfrom the time the fork takes a blank from the bottom of the stack in themagazine and carries it to the head I33 until the head takes up theblank. As soon as the head has lifted the blank from the fork lill thecarriage 89 returns to the position shown in Figs. 1, 2 and 3, thuscompleting a cycle of operation.

While I have shown a practical and preferred embodiment of'my inventionI wish it understood that changes in the construction may be madewithout departing from the spirit of the invention within the scope ofthe appended claims.

From the foregoing description taken in connection with the accompanyingdrawings it is thought the complete construction, operation andadvantages of my invention will be clear to those skilled in the art towhich it appertains.

What I claim is:

1. In a jacket forming machine wherein is provided a magazine forstacked blanks and a distant mandrel to which blanks are to betransferred, the improvement which includes: a supporting frame; acarriage horizontally reciprocatably mounted on said frame; a verticallymovable blank transferring member mounted on and carried by saidcarriage and positioned to lie directly under and spaced from themagazine when said carriage is at one extremity of its path of movementand to lie under and spaced from said mandrel when the carriage is atthe other extremity of its path of movement, means for advancing andretracting said carriage; and means for raising and lowering said blanktransferring member while the carriage is retracted; and means to causethe bottom blank to adhere to the blank transferring member when saidmember is raised to withdraw a blank from the magazine and hold theblank while it is being transferred to the mandrel. I

2. The machine of claim 1 in which said means for raising and loweringsaid blank transferring member includes a pivoted rocker fixedly locatedon said supporting frame, a vertically slidable rod mounted on saidcarriage, on which said blank transfer member is mounted, said rodengaging said pivoted rocker when the carriage is in its retractedposition, and cam means for actuating said rocker to raise and lowersaid rod at timed intervals.

3. In a jacket forming machine wherein is provided a magazine forstacked blanks and a distant mandrel to which the blanks are to betransferred and applied, the improvement which includes; a supportingframe; a rectilinearly reciprocatable carriage mounted on the frame topass under the magazine and the mandrel; a vertically reciprocatableblank transfer member mounted on said frame and including a forkedmember having grooves in the upper face of the arms of the fork andhavinglsuction ducts connecting with said grooves; means for moving saidcarriage back and. forth to bring said forked member alternately beneaththe magazine and the mandrel; means to raise and lower said transfermember when it is beneath the magazine; and means operable between theforked member arms when the same is beneath the mandrel for lifting theblank from said forked member and placing it against the mandrel.

4. The machine of claim 3 wherein said blanklifting means includes agrooved head, a vertically movable rod on which said head is mounted, aspring-loaded suction pipe projecting through a hole in said head andinto the groove thereof for holding the blank as the blank is liftedfrom the forked member and until the blank reaches the mandrel.

5. The machine of claim 3 wherein said blanklifting means includes areciprocating head operable between the arms of said forked member whilesaid forked member is beneath the mandrel, and suction means cooperativewith said head for holding the blank on said head while it is rising tothe mandrel; and means for timing the suction means of said forkedmember and that of said head so as to cause the suction means of saidhead to act as soon as that of said forked member ceases to act whilebeneath the mandrel.

JACOB CUTLER.

